Marcus Tan's answer to Charlotte Lim's Secondary 3 A Maths question.
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Use the formula from binomial expansion.
Date Posted:
7 years ago
Here's a link for the formula:
https://mathsteaching.files.wordpress.com/2008/05/binomial-expansion-formula.jpg
https://mathsteaching.files.wordpress.com/2008/05/binomial-expansion-formula.jpg
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